Heel-press.



J. H. POPE.

HEEL PRESS.

APPLICATION FILED FEB. a. 1914.

1,1 61,883. Patented Nov. 30, 1915.

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HEEL PRESS.

APPLICATION FILED FEB. 3. 1914.

1,161,883. Patented Nov. 30, 1915.

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irnn srarns PATENT on'rion.

JOSEPH H. POPE, OF HAMILTON, MASSACHUSETTS, ASSIGNOR TQ UNITED SHOE MACHINERY COMPANY, OF PA'IERSON, NEW. JERSEY, A GOR-IEORATION OF NEW J EBSEY.

EEL-reuse To all whom it may concern I Be it known that-I, JosErH 'I-I. Porn, a citizen of the United States, residing at Hamilton, in the county of Essex and State of Massachusetts, have invented certain Improvements in Heel-Presses, of which the following description, in connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several figures. V

This invention relates to presses, and especially presses for heels used in the manufacture of shoes.

An important object of my invention is to provide a readily manipulated pressure head which can be adjusted quickly to any height of stock to be pressedwithin the limits of the capacity of the machine and I prefer to utilize a toggle lever as means for securing the pressure head at the desired point. Such a head exerts a very strong dis'tortive action upon the frame of the press and another important object is to provide'the pressure head with means to aiford a countervailing force so that the machine will not be subject to destructive distortion. I prefer to employ columns or standards as the means for guiding and supporting the pressure head, and in accordance with my invention in its preferred form I supply means for gripping both sides of each of the two upright standards ordinarily employed so that the tresses neutralize each other.

Another object ofmy invention is to provide a clamp in the form of acam collar, op-

crating a coil spring arranged to exert a gripping action upon eacliof the columns to which reference has above been-made.

The various features of my invention will be illustrated and described fully in the accompanying drawings and specification and pointed out in the claims.

In the drawings, Figure 1 is a view in perspective of a heel press in the construction of which my improvements have been embodied; Fig. Qis a fragmentary view in front elevation of the same, showing the pressure head in operation upon heel stock, parts being broken away to reveal interior construction; Fig. 3 is a view similar to Fig. 2 of a modified form of clampingdey vice; and Fig. l is a fragmentary detail view upon an enlarged scale of the cooperat' ing cam'devices to operate the clamp.

In the drawings, the part designated by the reference numeral 1 is the base of a heel press, and 2rdesignates the head of the press,

the numeral 3 designating standards, or upright columns, connecting the base and head, secured in place by set screws l, the standards being cylindrical. a

I provide a pressure head comprising-a platen 5, having guide sleeves 6, mounted upon the'columns' 3, and I provide also in suitable form an operating device for the platensuch for example, as a toggle lever comprisln'g arms'7, pivoted tojaws 8, and

. also pivoted at their other ends to a collar 9, threaded to receive an operating screw 10 with a hand wheel 11, at its free end, the other end of the screw bearing against a suitable bearing piece 12, mounted upon the V platen, with-which the screw may, and prefa Specification of Letters Patent. Patentedfl'ov, 30 1915.

7 Application filed February 8, 1914.- Serial No. 816,351. I

I In accordance with an important object of my invention I provide means to furnish a countervailing support for the columns 3 at a point upon their circumference diametrically opposite to that subject to the thrust of the jaws 8, and this may take any suitable form. 7 As one convenient form I have shown a link 17, with turnbuckles 18, provided with am nuts 19, so that a strong support is provided to prevent distortion of the column 3. A p

'The parts designatedby the reference numerals 20 are counterweigh'ts connected with the pressure head by'fleXible cables 21, passing over pulleys 22, supported in brackets 23, upon the head of the frame, the cables being connected by suitable devices with the pressure head as indicated at 24.

In Figs. 3 and 4: I have shown a modified form of clamping device in which the coiled springs 30 afford a means for gripping the columns 31. One end 32 of each of these springs enters a recess in the sleeve 33, which serves as the toggle fulcrum, having ears the column 31, being preferablyretaii ed in position by a finger 38, formed integrally withthe sleeve This collar has a cam shoulder 39 to be engaged with a cooper-- ating cam knuckle 40, mounted pivotally at 41 on the toggle arm 47. The arms 47 are connected pivotally at 48 with an operating collar 49 traversed by an operating screw shaft 50, having a hand wheel 51 and connected at 52 with the platen 53, the latter having sleeves 54k as heretofore described to slide uponthe columns 31, the latter being supported in the base 61, andfastened thereto by set screws 62. 55 indicates flexible cables for the counterweights. 56 indicates the heel stock bein operated upon and, as the operation is the same in both cases. I will now describe thefoperation briefly. I

The stock 56 having been placed upon the base, and the hand wheel 11 or 51, as the case may be, having been turned to free the jaws 8 orthe springs 30, the pressure head is lowered until the platen 5;or 53 engages the stock 56. Then the hand wheel is operated to drive the screw shaft downward within its collar 9 or a9, and meeting with the resistance of the platen against the stock, it elevates the collar 9 or .49 and operates the toggle arms 7. or 47. Then,- in I the case of the structure shown in Figs. 1 and 2, the jaws 8 areforced directly against the columns 3, which are supported against the thrust by the link 17, and thereafter the screw forces theplaten 5 into compressive operation upon the stock .56. In the case of the structure shownin Figs. 3 and t, when the toggle d7 begins to operate the cam knuckle 40 turns the cam collar 39 and winds up the spring 30 into binding engagement with the column 31, after which further'operation of the screw forces the platen into compressive operation upon the stock 56. In each instance reverse movement of the hand wheel 11 01151 releasesthe toggle arms 7 or 4:7 and the jaws 8 or springs 30, and the pressure head may be readily raised under thebalancing action of the counterweights 20.

Having described my invention thus fully and suitable means by which the same may nor in general otherwise than as set forth in the claims, read in connection with this specification.

'1. A press, comprising a frame including a plurality of standards. a pressure head movable along said standards and having pressure devices movable relatively to said pressure head, and 1 eans to secure said pressure head to said standards in adjusted position, said securing means being constructed and arranged to apply a distortive force upon one side of each standard and a countervailing securing force upon the opposite sides of said standards, substantially as 'c'l'escribed.

2. A heel-press, comprising a frame having standards, a pressure head with a toggle joint pressure device operating upon the standards, and means to countervail the thrust of said toggle against said standards.

A heel-press, comprising a frame, having standards,a pressure head movable on said standards, and -a togglejoint device to lock said pressure head in adjusted position, including spring constructionclamp's operated said tog le devices.

4i. A heel-press, comprising frame standairds, a pressure head having spring'coil locking devices, and a toggle joint-operating device to twist said springs and cause the same "to clams said standards throu hout the, periphery of the latter.

5. A heel-press, comprising frame standards, a. pressure head having spring coil locking'devices, a toggle joint operating device to twist said springs and cause the same to clamp said standards throughout the periphery of the latter, and cam collars interposed between said toggle and "springs to convert the movement of said toggle into rotation to-twist said springs.

In testimony whereof l have signed my name to this specification in the presence of two subscribing witnesses.

JOSEPH H. POPE. Witnesses:

G. T. SMITH, C. T. SnssioNs.

Copies of this .patent may be obtained for five cents each, by addressing the Commissionerof Patents.

Washington, 'D. C. 

